David Angelotti - Lead Putting Specialist at Sea Island

David Angelotti - Lead Putting Specialist at Sea Island Putting Specialist at Sea Island Golf Club, under the tutelage of Director of Putting

THERE WAS NO WRONG ANSWER.Yesterday I posed the question:“Which one “looks” square?”The key word there was looks.Each im...
08/26/2026

THERE WAS NO WRONG ANSWER.

Yesterday I posed the question:

“Which one “looks” square?”

The key word there was looks.

Each image was edited using a different combination of only 1° of change in the linear and perpendicular references.

And yes, one combination was unedited and geometrically “square” to the ball to target line.

But the test wasn’t to actually pick the correct photo.

This was to reveal your perception.

If #2 looked square to you, that was your answer.
If #5 looked square, that was your answer.
If #6 looked square, that was your answer.

Perception is individual, but can be altered.

Two people can look at the exact same visual information and organize it differently.

That becomes incredibly important in putting because we often measure a player’s aim and immediately compare it to what is objectively square to the target.

But measuring where someone aims doesn’t explain why they aim there.

There are a few pillars for aim; body orientation, visual perception, putter shape, and stroke tendencies.

The player could organize the body orientation, eye position, and stroke to match that visual pattern.

This doesn’t mean your individual perception doesn’t matter.

Because we often try to help players perceive straight and square to be square.

And understanding the difference may tell us far more about why a golfer aims and moves the putter the way they do.

There wasn’t a wrong answer. There was your answer.

But how do we change or alter our perception for better alignment. Maybe we can chat about that in another post.

WHICH ONE LOOKS SQUARE?Pick a number before you keep reading.And Comment which you think it is.  I’ll post the follow up...
08/25/2026

WHICH ONE LOOKS SQUARE?
Pick a number before you keep reading.
And Comment which you think it is.

I’ll post the follow up Tomorrow

In my last post with my glasses, I talked about visual impairments that can influence our perception and ability to aim. I mentioned the Phil Kenyon T-Line test. This is what that test looks like to a variety of individuals.

There are only two things changing between these nine images: The linear reference is either:

Square / 1° Open / 1° Closed

The perpendicular reference is either:
Square / 1° Open / 1° Closed

That’s it. Only one degree difference per factor.

Yet those very small changes can create nine noticeably different visual pictures (don’t worry if you can’t see the differences, you have to train your eyes to “see square”)

And that’s where perception becomes interesting. When we stand over a putt, we aren’t simply looking at a single line. We’re trying to interpret multiple references at the same time:

Our intended target line.
The visual package of the putter (shape / lines / offset or onset)
Our body orientation and so on.

We then ask our visual system to decide:

Does this look straight?
Does this look square?

But what is geometrically square and what looks square to a player may not always be the same. A golfer may prefer one combination because the linear reference changes how the perpendicular reference is perceived or vice versa.

And if something has to be slightly open or closed to look square, the player may begin organizing their aim, setup and eventually stroke around that visual picture.

That’s why measuring aim tells us where the putter is pointing.

Testing perception starts to tell us why.

So look again.
Which one looks square to you?

Does “Straight” Look Straight? Does “Square” Look Square?I’ve had a few students over the past years come in with visual...
08/21/2026

Does “Straight” Look Straight? Does “Square” Look Square?

I’ve had a few students over the past years come in with visual impairments, so I figured I’d share my own experience.

A person’s visual perception can drastically alter their orientation and how they perceive the world around them.

In putting, visual perception plays a significant role in how we interpret the relationship between the ball, putter and target.

Here’s a simple visual that helps explain my own experience with astigmatism.

I have an astigmatism in both eyes, but the correction is significantly stronger in my left eye. You can actually see the difference in the way the straight reference appears through each lens.

When performing the Phil Kenyon perception test, my perception of straight is left of the hole, while my perception of a perpendicular reference feels very closed.

So what happens when I putt?

My aim wants to move open/right, and over time I’ve developed a slight pull to match it.

When I use a line on the golf ball, I will line that line right of the intended target almost 100% of the time.

But it doesn’t stop at aim.

A change in perception can alter your overall orientation to the target through adjustments in body lines and eye position.

Your stroke shape may even adapt to reconcile the difference between where you perceive the target to be and where it actually is.

That’s why I think we need to look beyond simply measuring whether someone aims or moves the putter correctly.

We need to understand what they see.

Before changing aim, setup or stroke mechanics, test the player’s perception of straight and square.

Because improving perception could change the way they orient themselves to their entire game.

07/05/2026

Sundays are for the boys… and putting 😂 rate my one handed stroke

I don’t normally post personal things to my socials, but I think this one is warranted.  Yesterday we welcomed our secon...
02/10/2026

I don’t normally post personal things to my socials, but I think this one is warranted. Yesterday we welcomed our second child and baby daughter to this world. Lila was born at 9:54am and weighed 6lbs 15oz. Mom and baby are doing great! 😊

01/17/2026

Let’s take a poll in the comments, what do you think the overall changes were for this player? List them out. And what tendencies do you think the original setup caused that warranted the change?

01/09/2026

from dialing some nice improvements to stroke length, tempo, timing, peak speeds, acceleration rates and wrist movements.

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